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Extenze HT Review

Extenze HT is a testosterone booster made by the same company that produces Extenze male enhancement products. Like other testosterone boosters, it does not contain actual hormones. Rather, it uses natural ingredients that work with your body to raise testosterone levels.

Increased testosterone has significant benefits for the male body. Since testosterone levels decline as men age, taking a testosterone booster can be an effective and safe way to enjoy the benefits of higher testosterone.

Extenze HT claims to increase testosterone, increase insulin-like growth factor-I (IGF-1), increase muscle mass, and boost energy.

I wanted to find out if Extenze HT was a good product, and how it measured up to its claims. After some research, here is what I discovered.

Ingredients in Extenze HT

Extenze HT is made of natural ingredients that may promote increased testosterone levels in males.

  • Gamma-aminobutyric acid (GABA): An inhibitory neurotransmitter made in the brain. It is used in supplements to relieve anxiety, promote lean muscle growth, burn fat, stabilize blood pressure, and relieve pain.[1]
  • Pregnenolone: Pregnenolone is a natural hormone pre-cursor in the body, also known as a pro-hormone. Pregnenolone is an important factor in testosterone production. It is thought that pregnenolone can be taken in supplement form to increase testosterone levels and energy.[2]
    However, clinical studies do not prove pregnenolone is effective
  • DHEA: Dehydroepiandrosterone (DHEA) is another precursor to testosterone made by the adrenal gland. It is supplemented to increase testosterone, but has little clinical evidence to prove its effectiveness.[3]
  • Fish Oil 33% EPA 22% DHA: Possibly effective for increasing weight loss and decreasing body fat, if taken at the proper dosage.[4]
  • Rosemary Extract: Rosemary extract is a powerful antioxidant. Free radicals are made as a byproduct of many metabolic processes. If left unchecked, they can cause oxidative damage to cells. Antioxidants protect your body from free radicals.

Is Extenze HT Effective?

A man’s natural testosterone production declines as he ages, usually beginning around 20 years old. The negative effects of decreased testosterone, like fatigue, weight gain due to decreased metabolism, decreased sex drive, and loss of endurance can be frustrating.

Extenze HT, if effective, may help alleviate these effects by naturally increasing testosterone production. Benefits may include greater endurance during workouts, more energy, weight loss, increased muscle growth, and improved sex drive. However, my research has led me to believe Extenze HT is not an effective product.

Extenze HT contains DHEA, which has been rumored to increase testosterone levels in men. In a study published in the Journal of the American Medical Association, DHEA supplementation was shown to significantly increase testosterone in women, but it had no significant effects on testosterone in men.[5]

Pregnenolone is thought to raise testosterone levels as well. However, there is little clinical evidence that demonstrates this and more research needs to be conducted to ensure its effectiveness.

Extenze HT also claims to increase IGF-1 and muscle size. GABA is a precursor for IGF-1 which is a precursor in growth hormone production.[6] Growth hormone promotes growth in all cells of the body, and can help increase skeletal muscle mass. However, the dosage of GABA in Extenze HT is very small and the effects on IGF-1 are probably negligible.

I do not feel there is enough clinical evidence to state whether Extenze HT can actually increase testosterone levels, IGF-1 levels, muscle mass, or energy levels significantly. The fish oil in Extenze HT could possibly promote moderate weight loss, but beyond that, this product is probably not effective.

Is Extenze HT Safe?

DHEA is a controversial ingredient associated with increased cancer risk. Hormone sensitive cancers, like prostate cancer, can be aggravated by increased testosterone levels.3 DHEA dose in Extenze HT is within the safe range.

Fish oil is also a controversial ingredient. It is considered likely safe in low doses of about 3 g or less per day.[4] Fortunately, Extenze HT only contains 50mg of fish oil, which is well inside the safe zone. However, fish oil can also be an allergen and those with fish allergies should not take this product.

Extenze HT’s label states the possible side effects are acne, hair loss, facial hair growth for women, aggression, irritability, and increased estrogen. It also states that a doctor should be seen if users experience rapid heartbeat, dizziness, blurred vision, or other similar symptoms.

I believe Extenze HT is safe. It does not contain enough of any ingredients to be hazardous. However, users need to take the direction to see a doctor seriously if they experience any of the symptoms above. These symptoms could be indicative of a more serious problem.


I couldn’t find Extenze HT’s official website. I visited, but there was no information about Extenze HT. Fortunately, a few other online retailers sell and provide information on Extenze HT.

  • $39.99
  • $31.96
  • $39.99

Extenze HT is sold in bottles of 30 softgels and users are directed to take 1 pill per day in the morning. Each bottle should last around 1 month if one pill is taken daily.


Extenze HT is marketed as a way for men to increase testosterone levels, build muscle, and increase energy. Based on my research, I do not feel this product will effectively increase testosterone. It may even increase estrogen levels according to the label—the opposite of what you want.

Although I stated that this product is probably safe for users to take, I don’t believe it will be effective. There are no customer reviews to back up this product and the ingredients have insufficient evidence to support the claims made. Users may want to try looking for a different, more effective and proven product to boost testosterone.


[1] “GABA (Gamma-Aminobutyric Acid).” WebMD. WebMD, n.d. Web. 19 Nov. 2012. .

[2] “Pregnenolone: Uses, Side Effects, Interactions and Warnings – WebMD.” WebMD. WebMD, n.d. Web. 19 Nov. 2012.

[3] “DHEA.” Mayo Clinic. Mayo Foundation for Medical Education and Research, 01 Sept. 2012. Web. 19 Nov. 2012. .

[4]”Fish Oil.” WebMD. WebMD, n.d. Web. 19 Nov. 2012. .

[5]Villareal, Dennis T. “Effect of DHEA on Abdominal Fat and Insulin Action in Elderly Women and Men.” American Medical Association 292.18 (2004): n. pag. JAMA Network. Web. 20 Nov. 2012.

[6]GY, Minuk. “Effect of Exogenous Gamma-aminobutyric Acid (GABA) on Hepatic Insulin-like Growth Factor I (IGF-1) and IGF-1 Binding Protein (IGFBP-I) MRNA Abundance following Partial Hepatectomy in Rats.” National Center for Biotechnology Information. U.S. National Library of Medicine, Nov. 1995. Web. 19 Nov. 2012. ..

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